Christine Kuehn's 'Family of Spies' unearths the extraordinary true story of her family's involvement in Nazi espionage during World War II. The book traces Kuehn's journey as she discovers that her grandparents and aunt were sent by Joseph Goebbels to Hawaii to spy on the American naval fleet, ultimately aiding the attack on Pearl Harbor. Through meticulous research and personal investigation, Kuehn reveals how her family lived a life of luxury and secrecy, which unraveled after the bombing, leading to arrests, internment, and eventual repatriation to Germany.

The narrative balances the suspenseful details of espionage with the emotional impact of family betrayal, as Kuehn grapples with the legacy of her relatives' actions. The story is filled with cinematic twists, from lavish parties that drew suspicion to the dramatic apprehension of the spies. The book also explores the complex character of Ruth, Kuehn's aunt, who played a pivotal role in the spy ring and later attempted to bury her past. Ultimately, 'Family of Spies' is a gripping account of secrets, loyalty, and the enduring consequences of wartime choices.